diff --git a/nezha-fronted/src/assets/stylus/main.scss b/nezha-fronted/src/assets/stylus/main.scss
index 0cfbddff4..3ea62968a 100644
--- a/nezha-fronted/src/assets/stylus/main.scss
+++ b/nezha-fronted/src/assets/stylus/main.scss
@@ -1769,6 +1769,7 @@ li{
 }
 .nz-table .el-table__fixed, .nz-table .el-table__fixed-right {
   height: 100% !important;
+  z-index: 1;
 }
 .nz-table .el-table__fixed-body-wrapper {
   height: calc(100% - 33px) !important;